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统计网卡流量的两段shell脚本(使用ifconfig)

2020-07-27 19:24:06
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使用shell脚本计算Linux网卡流量,方法中最关键点:

复制代码 代码如下:

ifconfig $eth_name | grep bytes | awk '{print $6}' | awk -F : '{print $2}'


通过ifconfig eth0|grep bytes 得到输入输出的流量。

复制代码 代码如下:

/@rac2=>dd2$ifconfig eth0|grep bytes
RX bytes:1638005313300 (1.4 TiB) TX bytes:3408060482049 (3.0 TiB)


再将结果通过awk 得出所要的字段值。
固定时间得到这些值,在写个循环计算一下就能得到网卡流量。
完整代码:

代码一:

#!/bin/bash# 统计网卡流量# link:www.VeVB.COm# date:2013/2/26n=10 daterm -rf /tmp/ifconfig_logwhile (( $n >= 0 ))do n=$(($n - 1)); date >> /tmp/ifconfig_log ifconfig eth1 >> /tmp/ifconfig_log sleep 1done grep "RX bytes:" /tmp/ifconfig_log | awk -F"[:| ]" '{print $13}' | awk 'BEGIN{tmp=$1}{if(FNR > 1)print $1-tmp}{tmp=$1}'

代码二:

#!/bin/bashif [ -n "$1" ]; then eth_name=$1else eth_name="eth0"fii=0send_o=`ifconfig $eth_name | grep bytes | awk '{print $6}' | awk -F : '{print $2}'`recv_o=`ifconfig $eth_name | grep bytes | awk '{print $2}' | awk -F : '{print $2}'`send_n=$send_orecv_n=$recv_owhile [ $i -le 100000 ]; do send_l=$send_n recv_l=$recv_n sleep 1 send_n=`ifconfig $eth_name | grep bytes | awk '{print $6}' | awk -F : '{print $2}'` recv_n=`ifconfig $eth_name | grep bytes | awk '{print $2}' | awk -F : '{print $2}'` i=`expr $i + 1` send_r=`expr $send_n - $send_l` recv_r=`expr $recv_n - $recv_l` total_r=`expr $send_r + $recv_r` send_ra=`expr /( $send_n - $send_o /) / $i` recv_ra=`expr /( $recv_n - $recv_o /) / $i` total_ra=`expr $send_ra + $recv_ra` sendn=`ifconfig $eth_name | grep bytes | awk -F /( '{print $3}' | awk -F /) '{print $1}'` recvn=`ifconfig $eth_name | grep bytes | awk -F /( '{print $2}' | awk -F /) '{print $1}'` clear echo "=================================================="  echo "Last second :  Send rate: $send_r Bytes/sec Recv rate: $recv_r Bytes/sec Total rate: $total_r Bytes/sec" echo "Average value:  Send rate: $send_ra Bytes/sec Recv rate: $recv_ra Bytes/sec Total rate: $total_ra Bytes/sec" echo "Total traffic after startup:  Send traffic: $sendn Recv traffic: $recvn" echo "=================================================="done

代码三:

#!/bin/bash  # Link: www.51bbo.com  ###  while :  do    Time=`date +%F” “%T.%N`    rx_before=`ifconfig eth0 |sed -n 8p |awk ‘{print $2}'| cut -c7-`    tx_before=`ifconfig eth0 |sed -n 8p |awk ‘{print $6}'| cut -c7-`    sleep 2    rx_after=`ifconfig eth0 |sed -n 8p |awk ‘{print $2}'| cut -c7-`    tx_after=`ifconfig eth0 |sed -n 8p |awk ‘{print $6}'| cut -c7-`     rx_result=$[(rx_after  rx_before)/512]    tx_result=$[(tx_after  tx_before)/512]    echo -e “$Time nNow_In_Speed: ‘$rx_result'Kbps Now_OUt_Speed: ‘$tx_result'Kbpsn”  done

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